Melting point :−116 °C(lit.)
Boiling point :98 °C(lit.)
Density :0.842 g/mL at 25 °C(lit.)
vapor density :3.1 (vs air)
vapor pressure :83 mm Hg ( 37.7 °C)
FEMA :3478 | 1-BUTANETHIOL
refractive index :n20/D 1.443(lit.)
Flash point :55 °F
storage temp. :Store below +30°C.
solubility :Slightly soluble in water, soluble in alcohol and oils.
pka :11.51 at 25 °C (23.0% aqueous tert-butyl alcohol, Friedman et al., 1965)
form :Liquid
color :Colorless
Specific Gravity :0.842
Odor :Strong skunk-like.
explosive limit :1.4-11.3%(V)
Odor Threshold :0.0000028ppm
Odor Type :sulfurous
Water Solubility :0.60 g/100 mL. Slightly soluble
Sensitive :Air Sensitive
Merck :14,1577
JECFA Number :511
BRN :1730908
Henry's Law Constant :(x 10^-3 atm?m³/mol): 7.04 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits :NIOSH REL: 15-min ceiling 0.5 ppm (1.8 mg/m³), IDLH 500 ppm; OSHA PEL: TWA 10 ppm (35 mg/m³); ACGIH TLV: TWA 0.5 ppm (adopted).
Dielectric constant :4.9500000000000002
Stability :Stable. Incompatible with oxidizing agents, bases, alkali metals. Highly flammable. May discolour on exposure to air.
LogP :2.28
CAS DataBase Reference :109-79-5(CAS DataBase Reference)
NIST Chemistry Reference :1-Butanethiol(109-79-5)
EPA Substance Registry System :Butyl mercaptan (109-79-5)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.